When a gigantic piece of crap has been lovingly nurtured and has reached its final level of growth and development. At the end of this stage it's evacuated from the safe, warm environment that is the bowels. Coined in the South Park episode "More Crap".
In real life, the turd trimester can be compared to the status of pulling tongues.
As a doctor I cannot condone travelling on an airplane in your turd trimester. It is not safe.
When a malesticks their hands in their ass then next to their balls then in their belly button. This then becomes a weapon of mass destruction. Addiction may arise.
My friend chased me with the Traashy Trifecta and it stunk.
The sweet smell of the trashy trifecta filled the room.
You've had sex with three generations of the same family. The daughter, The mom and the grandmother, or, the son, the father and the grandfather.
John had sex with his girlfriend the other night, after already having sex with her mother and her grandmother before, therefore completing the Redneck Trifecta.